proyecto igor

ProExplo, Lima - Per May 20, 2013

www.siennagold.com TSX.V SGP; BVL SGP

Except for the statements of historical fact contained herein, the information presented constitutes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements involve known and

unknown risks, uncertainties and other factors which may cause the actual results, performance or achievement of the

Company to be materially different from any future results, performance or achievements expressed or implied by such

forward-looking statements.

Although the Company has attempted to identify important factors that could cause actual results to differ materially, there may

be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such

statements will prove to be accurate as actual results and future events could differ materially from those anticipated in such

statements. Accordingly, readers should not place undue reliance on forward-looking statements.

Cautionary Note to U.S. Investors Concerning Estimates of Measured, Indicated and Inferred Resources:

This presentation uses the terms Measured, Indicated and Inferred Resources. U.S. investors are advised that while such terms are recognized and required by Canadian regulations, the Securities and Exchange Commission does not recognize

them. Inferred Resources have a great amount of uncertainty as to their existence, and great uncertainty as to their economic and legal feasibility. It cannot be assumed that all or any part of an inferred resource will ever be upgraded to a higher category.

Under Canadian rules, estimates of Inferred Resources may not form the basis of feasibility or other economic studies. U.S.

investors are also cautioned not to assume that all or any part of an Inferred Mineral Resource exists, or is economically or

legally minable.

The technical information contained in this presentation has been reviewed and approved by Warren Pratt (CGEO), a Director

of Sienna Gold, who is a Qualified Person as the term is defined in NI 43-101.

Forward Looking Statements and Cautionary Notes

www.siennagold.com TSX.V SGP; BVL SGP 1

#1 Gold producer in

Latin America

#6 Gold producer in

the World

#3 Silver producer

in the World

#3 Copper producer

in the World

#3 Zinc producer in

the World

Mining Culture

and Tradition

Barrick Gold Corp Newmont Mining BHP Billiton Xstrata Buenaventura Hochschild Gold Fields Anglo American Teck Rio Tinto

Source: U. S. Geological Survey USGS 2012


Per: A Dominant Player in the Global Mining Community

Lagunas Norte

La Arena

Pierina

Source: Company reports

Largest gold producer in Latin America One of the most profitable gold mines in the world 691,000 ounces produced in 2012; $505/oz

Yanacocha

Feasibility study completed Production slated for 90,000 ounce/yr, 2014 Gold Eq resources: 5.4Moz

Shahuindo (Sulliden)

Largest gold discovery in the last decade 2013 (P) production of 560,000 ounces, $400/oz

Lagunas Norte (Barrick)

Jr. Mining success: $145MC/resource ounce 201,000 ounces produced in 2012 Gold resources: 6.1 Moz

La Arena (Rio Alto)

One of the principal gold producers in Per 2010 production: 191,000 ounces

Pierina (Barrick)

Yanacocha

Shahuindo


Igor: Heart of the Northern Per Gold Belt

Igor Project Regional Geology


Folded and steeply dipping Chimu Formation arenites and shales

Igor Project - Principal Lithologies

Quartz-sericite altered dacite porphyry with stockwork and sheeted veins


Oxide gold/silver mineralization

in drill hole CA-11-06: 163.0 to

164.5 metres grading

6.3 gpt gold and 31.9 gpt silver

(11.3 m @ 3.9 gpt Au and 46 gpt Ag)

High-grade mixed oxide/sulphide silver

mineralization in drill hole CA-11-11:

195.9 to 196.5 metres grading 1.6 gpt

gold and 3995 gpt silver

(39 m @ 0.4 gpt Au and 230 gpt Ag)

Igor Project: Mineralization


Pervasively quartz-sericite-pyrite

altered dacite porphyry

Sulfide matrix pebble dike with

clasts of altered porphyry

Igor Project Deep Porphyry Potential


Tesoros Exploratory

Drilling

2763.20 m

Pre-2010 Drilling

Callanquitas Igor 2007 - 2008

849.00 m


Domo Exploratory

Drilling

631.00 m

Depth (m) Interval

(m)

Weighted Average

Au (g/t) Ag (g/t) Cu %

Total 12.3 to 230.7 218.4 0.6 22.3

Best

Intervals 66.6 to 100.3 33.7 1.8 34.4

including 66.6 to 93.9 27.3 2.1 35.4

including 67.7 to 70.0 2.3 3.2 44.8

INCLUDING 86.9 TO 90.7 3.8 7.0 74.7

144.9 to 157.9 13.0 1.0 127.3 0.019

INCLUDING 145.2 TO 145.6 0.4 1.9 334.0

INCLUDING 154.4 TO 157.9 3.5 2.2 349.8

EOH 228.7 to 230.7 2.0 1.7 61.8 0.440

CA01b Assay Results: 2008 Discovery Hole


The objective of the 2010 2011 drill campaign was to test the potential of

the Callanquitas near surface

epithermal gold silver mineralization, open laterally and at

depth.

Domo

Tesoros

Callanquitas


2010-2011 Drill Campaign

Access road showing the extreme terrain

typical of the project


Igor Project

Callanquitas Structure

Gold in historic rock chip sampling guided

initial drilling

Note strong north-south trend in high

grade samples


Igor Project


Initial Drilling 2010 2011:2500 m showing

mineralized intersections in

CA-10-01 to CA-11-05

The drill holes help define a north-south mineralized zone


Igor Project


2010-2011 drilling & sampling shows a

north-south mineralized

zone, about 1.2 km long

and 100-200 m wide


Igor Project


A total of 1808.7 m was drilled in three additional

holes to test the new

geological model


Igor Project


Eight key drill holes (a total of 4235 m) and

significant intercepts

Note consistent grade and width along the

length of the structure


CA-11-07 10.3 m @ 4.2 g/t gold

and

39.3 g/t silver CA-11-08

3.85 m @ 13.1 g/t

gold and 2112.7 g/t

silver

CA-11-05

24 m @ 0.8 g/t gold

and

134.9 g/t silver

CA-10-02

8m @ 1.8g/t gold

and

21.1g/t silver

CA-10-06

11.3m @ 3.9g/t gold

and 45.4 g/t silver

90

0 m

ete

rs

Igor Project


Gold results from recent samples along the


Gold up to 61.4 g/t (1.97 oz/t) and silver values up to

1019 g/t (32.76 oz/t)

High Grade

Surface,

Channel

and Adit

Samples


Igor Project


Exploration to date: 73 drill holes on 50

m spaced sections

for a total of 19,159

metres


Igor Project


Significant intercepts Plan view


Igor Project


SECTION NW4690

Currently contains seven

scissorholes:

CA-11-08 CA-12-29 CA-12-30 CA-12-31 CA-12-43 CA-12-44 CA-12-68


Igor Project


Section NW 4690 shows excellent vertical continuity with

mineralization extending over 400 m

Local zones of higher grade mineralization may define specific

clavos: 3.1 metres grading 38.5 gpt gold and 194 gpt silver in drill hole

CA-12-30

Thickness of mineralized zones may allow for low cost mechanized

underground mining


Igor Project


Resource Estimate Highlights

Inferred Mineral Resource Estimate of 7.2 million tonnes grading 1.94 grams per tonne (g/t) gold and 71.8 g/t silver, which equates to 3.16 gold equivalent (Au Eq*)

g/t using a cut-off grade of 1.5 Au Eq* g/t

Approximately 448,500 ounces of gold and 16,600,000 ounces of silver which equate to approximately 730,500 Au Eq* ounces

The Callanquitas Structure remains open along strike and at depth


Callanquitas Resource Estimate

Cut-Off

Au Eq (g/t)

Tonnes

(kt)

Au Eq

(g/t)*

Au

(g/t)

Ag

(g/t)

Contained Au

(koz)

Contained Ag

(Moz)

Contained Au

Eq (koz)*

0.5 11,291 2.39 1.47 53.8 535.0 19.5 866.9

1 9,486 2.70 1.67 60.5 508.6 18.4 822.1

1.5 7,189 3.16 1.94 71.8 448.5 16.6 730.5

2 5,460 3.61 2.19 83.7 384.6 14.7 634.3

2.5 3,992 4.11 2.45 98.2 313.9 12.6 528.1

3 2,730 4.75 2.73 119.1 239.4 10.5 417.1

*Au Eq = Au + (Ag*0.017) based on a gold price of US$1500/oz and a silver price of US$25/oz (a ratio of 60:1)


Please see : Technical Report on the Callanquitas Structure, Igor Mine Project, Northern Peru, South America, NI 43-101 Technical Report dated 14 December, 2012. The technical report has been filed on SEDAR and is available on the Companys web site. Mineral resources are not mineral reserves and do not have demonstrated economic viability.

There is no certainty that all or any part of the mineral resource will be converted into mineral reserves.

Open

Open Open


Callanquitas Long Section

Domo 9

00

m

Igor Exploration Potential

8 km of untested

structures

Note area occupied by

current resource

versus untested

ground


Tesoros

Callanquitas

Callanquitas Step-out

Portachuelo

Total Expenditure (Administration and Exploration)

to Define Targeted 730,000 oz Gold Equivalent

Inferred Resource:

Approx US$10MM

Discovery Cost per oz Gold Equivalent ~ US$14

Discovery Cost


Topography favors simple ramp to bottom of deposit, potential low Capex

Low cost, underground mining possible

Callanquitas Structure Development Potential


Highly oxidized Au-Ag mineralization

Competent HW and FW may allow low

dilution UG mining

Callanquitas Structure Development Potential


Sienna Gold: The Path Forward

Commence 20,000+ metre staged drilling program: Drill Callanquitas Structure area for resource expansion

Test South extension of Callanquitas Structure, expand resource to south

Begin drill evaluation of Domo and Tesoros targets

Second Phase drilling to begin late 2013

Begin focused community enhancement program, sustainable engagement of all stakeholders

Aggressive marketing: Define the Sienna story with measurable benchmarks

Timeline:

Update Project resource estimate, Q4 2013

PEA H1 2014

Goal: Deliver results on time, build the resource, establish economics - a proven formula for wealth creation


Key Value Drivers

New, experienced management team who can execute the formula for success

High quality project, poised for resource expansion, with the potential for a low-Capex, low-cost, production profile

Excellent jurisdiction: Prolific production in a country with mining tradition. Three projects approved in last

quarter alone

Strong Board support and knowledge of working in Per

Sienna poised for significant revaluation in the market


Contact info:

Suite 1500 701 W. Georgia St, Vancouver, B.C.

Canada V7Y 1C6

Office: +1-604-601-3441

Contact: Kimberly Ann, VP Corporate

Development

+1-530-414-4400

[email protected]

www.siennagold.com

Mr. Brian Maher, President, CEO and Director: Mr. Maher is an economic geologist with over 34 years of experience in the international mining and exploration industry. Most recently, Mr. Maher was the President, CEO and Director of Prodigy Gold Inc. Mr. Maher received his BA degree (Geology) from the

California State University, Chico in 1980 and his MSc. degree (Economic Geology) from Colorado State University in 1983. In 1982, Mr. Maher began a 16-year career

with ASARCO Inc. Mr. Maher initiated, designed and supervised exploration programs for gold and copper deposits in a variety of geologic environments throughout

North and South America. From 1998 through 2002, Mr. Maher operated a successful geologic consulting business, emphasizing geologic modeling, resource

estimation and business planning, to multiple junior, mid-size and large mining organizations. Between 2002 and 2004 Mr. Maher was Project Manager for Metallic

Ventures Gold Inc., supervising underground and surface exploration, mine development and operations at an underground gold mine in Nevada. In 2005, Mr. Maher

joined Hochschild Mining PLC. At Hochschild, Mr. Maher was involved in all aspects of the company's North American exploration program, serving as the Exploration

Manager for the US, Canada and Mexico. Responsibilities at Hochschild included supervision of exploration and mine development programs, economic analysis of

acquisition candidates and developing new corporate strategies.

Mr. Tony Wood, CFO: For over fifteen years Mr. Wood has held executive positions in finance and operations with a number of publicly traded international mining and exploration companies. Most recently, Mr. Wood was CFO for Prodigy Gold Inc., helping the company grow from a $25M market cap company to an

eventual buy-out by Argonaut Gold for $341M. Diverse expertise in all aspects of compliance, corporate governance and operations, Tony's experience covers projects

in North and South America and Europe, across a wide range of targets that include precious and base metals, diamonds and uranium. His past roles have

encompassed responsibility for planning and execution of mining and exploration projects, the development of corporate cultures that embrace strong financial and

regulatory compliance and he has been a key component in corporate development and financing activities. Mr. Wood received his Chartered Accountant designation

while with KPMG, in the City of London and then again in Canada, having previously attained a B.Sc. (Honours) in Management Sciences from Lancaster University,

England, in 1989.

Ms. Kimberly Ann, Vice President - Corporate Development: Ms. Kimberly Ann is a corporate development and communications specialist with over 20 years marketing experience in branding, investor relations and finance. In the past three years, Kimberly Ann has assisted in raising over $90M in equity

financing and directed three major junior mining rebranding projects. While at Prodigy Gold, Kimberly Ann was responsible for all aspects of the company's corporate

communication program, facilitating equity financings, generating analyst coverage, participating in key aspects of corporate M&A activities and generating widespread

recognition of the company's successful transition from explorer to mine developer. Kimberly Ann has broad experience in coordinating and leading road shows,

managing portfolio manager and analyst contacts, and building company recognition by presenting concise, growth-oriented business plans. Kimberly Ann attended the

University of Washington, majoring in Business and Marketing

Owen D. W. Miller, PhD, Exploration Manager: Graduate of Aberdeen University (BSc Geology and Mineralogy, 1989; PhD on precious and porphyry copper mineralization in North Wales, 1993). Based in Latin America since 1994, Dr. Miller acquired extensive experience in epithermal and porphyry style systems with

such major companies as Newcrest, MIM, and Barrick. In 2000 he set up his own consulting company specializing in project evaluation and the application of GIS and

database technologies to the exploration industry. After consulting for a year he joined Sienna fulltime in 2011.

Management Biographies


Mr. Jorge Benavides, Chairman of the Board of Directors: Mr. Benavides has over 30 years experience in the mining industry and is currently President, CEO and Director of Zincore Metals Inc, a Peruvian-focused base metal exploration and mine development company. Prior to joining

Zincore , Jorge was an independent consultant and Senior Advisor to the Chairman of Hochschild Mining PLC. He was with Hochschild from 2001 through

2008, guiding the Company's exploration programs and was a key member of the senior executive team that oversaw Hochschild 's rapid growth into one of

the world's premier silver mining companies. Prior to Hochschild, Jorge spent eight years working for Phelps Dodge Mining Company in South America,

including serving as Exploration Manager for the Andean Region. Jorge is currently on the Board of Directors of ECI Exploration and Mining Inc. and

Pembrook Mining Corp., both private Canadian exploration companies. Mr. Benavides holds a M.Sc. in Ore Deposits and Exploration from Stanford

University and a B.Sc. in Geological Engineering from the Colorado School of Mines.

Mr. Brian Maher, President, CEO and Director: See management bio.

Luis-Felipe Arizmendi E.: Mr. Arizmendi former Chairman and CEO of Grupo Privado de Inversiones Valores S.A., a Peruvian investment banking firm where he was responsible for the funding and support of Sienna in its last three financings. He brings a thorough understanding of the

investment and banking side to the Board of the Company, and joins the Company with a view helping to solidify the Company's capital structure and

moving the Igor Project through feasibility to production. At the present time he is also Chairman of the Board of the Peruvian Brokers Association (ASAB

Peru),as well holding senior positions as advisor and board member of many societies in Peru.

Rafael E. Romero, Romero Group: Rafael E. Romero, was born and raised in Peru and was educated in North America, at Northeastern University. He is presently a senior executive and bank officer at Credicorp (NYSE: BAP) with experience in loans and new projects analysis as well as

expertise of the import/export business. Mr. Romero currently manages that bank's personal banking department. He brings over 19 years of experience in

Peruvian banking plus other related businesses as part of the Romero Group of companies where he has helped form of several successful companies

D. Richard Skeith, Lawyer, Norton Rose Canada: Mr. Skeith has over 30 years experience as a solicitor advising a variety of private and public corporations. In addition he has been or is currently a director or officer of a number of public and private companies in the oil and gas exploration and

development and services sectors, in mining, biotechnology, real estate and telecommunications.

Director Biographies


Warren Pratt, PhD, CGeol.: Bilingual Consulting Geologist (BSc Geology Hull, 1986; PhD Structural Geology, University of Wales, 1990). Strong mapping background and in 1994 won the President's Award of the Geological Society of London for detailed thematic mapping. Extensive International

experience. In recent years he has consulted at several World Class discoveries, including La Bodega (Ventana Gold, Colombia), Regalito (Lumina, Chile), El

Galeno (Lumina, Peru), Navidad (Pan American Silver, Argentina), and.Taca Taca (Lumina, Argentina).

Andrew S Burgess, Chairman Audit Committee: Mr. Burgess has a B. Comm (Hons) degree from the University of Manitoba and is a Chartered Accountant (Alberta) and Certified Public Accountant (Illinois). He has been director and officer in several listed mineral exploration and mining

companies including Consolidated Brinco Ltd., Western Canadian Mining Corporation, Sulphurets Gold Corporation, Dominion Explorers Inc., Ecstall Mining

Corporation, United Tex-Sol Mines Ltd., Sienna Gold Corporation and Spectrum Mining Corporation. These companies have been involved in the mining of

asbestos and coal and the exploration for Cu, Au, Pb, Ag and REE. Projects include the Quinsam coal mine, the Kerr/Sulphurets Cu/Au porphyry deposit, the

Croinor Au deposit, the Akie sedex hosted Pb-Zn deposit, the Clavos Au deposit, and the Wicheeda REE deposit.

Declan B. Livesey, P. Eng., PhD.: Independent Engineering Consultant (PhD Mining Wales, 1974). Dr Livesey has over 30 years experience in the mining and oil and gas industries. He has held a number of management positions within major resource companies including VP Operations and Engineering

with a major US corporation.

Charles Littlejohn, JD.:: Mr. Littlejohn graduated from the University of Western Ontario in 1969 with a Bachelor of Arts degree. He also holds a law degree (J.D. cum laude) from the Southern California Institute of Law. Over the past 40 years he has been a founder and director of numerous companies,

including a mutual fund management company. He has also taught classes in International Law at a California law school. He has a keen interest in geology,

with considerable experience in PGE metals plus gold and cobalt deposits in Northern Ontario. He is a major shareholder of Sienna Gold, Inc. and has raised

hundreds of thousands of dollars for the companys exploration programs.

Director Biographies


proyecto igor

Documents

gold resources

largest gold producer

inferred resources

forwardlooking statements

gold eq resources

v sgp bvl sgp

director of sienna gold

profitable gold mines